Birdhouse



FIG. 1 is a top perspective view of a birdhouse showing my new design;

FIG. 2 is an elevational view taken from one corner thereof, the other corners being the same as the corner shown;

FIG. 3 is a top plan view thereof, the bottom being the same as the top shown; and

FIG. 4 is a side elevational view thereof, the other sides being the same as the side shown.

The fragmentary broken line representation of a support pole in FIGS. 1, 2, and 4 if for purposes of illustration only and forms no part of the claimed design. 

The ornamental design for a birdhouse, as shown and described. 